public void SetRevoked_Respected()
{
// Arrange
var now = DateTimeOffset.UtcNow;
var key = new Key(Guid.Empty, now, now, now, new Mock<IAuthenticatedEncryptorDescriptor>().Object);
// Act & assert
Assert.False(key.IsRevoked);
key.SetRevoked();
Assert.True(key.IsRevoked);
}
public void CreateEncryptorInstance()
{
// Arrange
var expected = new Mock<IAuthenticatedEncryptor>().Object;
var mockDescriptor = new Mock<IAuthenticatedEncryptorDescriptor>();
mockDescriptor.Setup(o => o.CreateEncryptorInstance()).Returns(expected);
var now = DateTimeOffset.UtcNow;
var key = new Key(Guid.Empty, now, now, now, mockDescriptor.Object);
// Act
var actual = key.CreateEncryptorInstance();
// Assert
Assert.Same(expected, actual);
}
public void Ctor_Properties()
{
// Arrange
var keyId = Guid.NewGuid();
var creationDate = DateTimeOffset.Now;
var activationDate = creationDate.AddDays(2);
var expirationDate = creationDate.AddDays(90);
// Act
var key = new Key(keyId, creationDate, activationDate, expirationDate, new Mock<IAuthenticatedEncryptorDescriptor>().Object);
// Assert
Assert.Equal(keyId, key.KeyId);
Assert.Equal(creationDate, key.CreationDate);
Assert.Equal(activationDate, key.ActivationDate);
Assert.Equal(expirationDate, key.ExpirationDate);
}
public void Protect_Unprotect_RoundTripsProperly()
{
// Arrange
byte[] plaintext = new byte[] { 0x10, 0x20, 0x30, 0x40, 0x50 };
Key key = new Key(Guid.NewGuid(), DateTimeOffset.Now, DateTimeOffset.Now, DateTimeOffset.Now, new AuthenticatedEncryptorConfiguration(new AuthenticatedEncryptionOptions()).CreateNewDescriptor());
var keyRing = new KeyRing(key, new[] { key });
var mockKeyRingProvider = new Mock<IKeyRingProvider>();
mockKeyRingProvider.Setup(o => o.GetCurrentKeyRing()).Returns(keyRing);
var protector = new KeyRingBasedDataProtector(
keyRingProvider: mockKeyRingProvider.Object,
logger: null,
originalPurposes: null,
newPurpose: "purpose");
// Act - protect
byte[] protectedData = protector.Protect(plaintext);
Assert.NotNull(protectedData);
Assert.NotEqual(plaintext, protectedData);
// Act - unprotect
byte[] roundTrippedPlaintext = protector.Unprotect(protectedData);
Assert.Equal(plaintext, roundTrippedPlaintext);
}
public void Unprotect_IsNotDefaultKey_Success_RequiresMigration()
{
// Arrange
Guid defaultKeyId = new Guid("ba73c9ce-d322-4e45-af90-341307e11c38");
Guid embeddedKeyId = new Guid("9b5d2db3-299f-4eac-89e9-e9067a5c1853");
byte[] expectedCiphertext = new byte[] { 0x03, 0x05, 0x07, 0x11, 0x13, 0x17, 0x19 };
byte[] protectedData = BuildProtectedDataFromCiphertext(embeddedKeyId, expectedCiphertext);
byte[] expectedAad = BuildAadFromPurposeStrings(embeddedKeyId, "purpose");
byte[] expectedPlaintext = new byte[] { 0x23, 0x29, 0x31, 0x37 };
var mockEncryptor = new Mock<IAuthenticatedEncryptor>();
mockEncryptor
.Setup(o => o.Decrypt(It.IsAny<ArraySegment<byte>>(), It.IsAny<ArraySegment<byte>>()))
.Returns<ArraySegment<byte>, ArraySegment<byte>>((actualCiphertext, actualAad) =>
{
Assert.Equal(expectedCiphertext, actualCiphertext);
Assert.Equal(expectedAad, actualAad);
return expectedPlaintext;
});
var mockDescriptor = new Mock<IAuthenticatedEncryptorDescriptor>();
mockDescriptor.Setup(o => o.CreateEncryptorInstance()).Returns(mockEncryptor.Object);
Key defaultKey = new Key(defaultKeyId, DateTimeOffset.Now, DateTimeOffset.Now, DateTimeOffset.Now, new Mock<IAuthenticatedEncryptorDescriptor>().Object);
Key embeddedKey = new Key(embeddedKeyId, DateTimeOffset.Now, DateTimeOffset.Now, DateTimeOffset.Now, mockDescriptor.Object);
var keyRing = new KeyRing(defaultKey, new[] { defaultKey, embeddedKey });
var mockKeyRingProvider = new Mock<IKeyRingProvider>();
mockKeyRingProvider.Setup(o => o.GetCurrentKeyRing()).Returns(keyRing);
IDataProtector protector = new KeyRingBasedDataProtector(
keyRingProvider: mockKeyRingProvider.Object,
logger: null,
originalPurposes: null,
newPurpose: "purpose");
// Act & assert - IDataProtector
byte[] retVal = protector.Unprotect(protectedData);
Assert.Equal(expectedPlaintext, retVal);
// Act & assert - IPersistedDataProtector
bool requiresMigration, wasRevoked;
retVal = ((IPersistedDataProtector)protector).DangerousUnprotect(protectedData,
ignoreRevocationErrors: false,
requiresMigration: out requiresMigration,
wasRevoked: out wasRevoked);
Assert.Equal(expectedPlaintext, retVal);
Assert.True(requiresMigration);
Assert.False(wasRevoked);
}
public void Unprotect_KeyRevoked_RevocationDisallowed_ThrowsKeyRevoked()
{
// Arrange
Guid keyId = new Guid("654057ab-2491-4471-a72a-b3b114afda38");
byte[] protectedData = BuildProtectedDataFromCiphertext(
keyId: keyId,
ciphertext: new byte[0]);
var mockDescriptor = new Mock<IAuthenticatedEncryptorDescriptor>();
mockDescriptor.Setup(o => o.CreateEncryptorInstance()).Returns(new Mock<IAuthenticatedEncryptor>().Object);
// the keyring has only one key
Key key = new Key(keyId, DateTimeOffset.Now, DateTimeOffset.Now, DateTimeOffset.Now, mockDescriptor.Object);
key.SetRevoked();
var keyRing = new KeyRing(key, new[] { key });
var mockKeyRingProvider = new Mock<IKeyRingProvider>();
mockKeyRingProvider.Setup(o => o.GetCurrentKeyRing()).Returns(keyRing);
IDataProtector protector = new KeyRingBasedDataProtector(
keyRingProvider: mockKeyRingProvider.Object,
logger: null,
originalPurposes: null,
newPurpose: "purpose");
// Act & assert
var ex = ExceptionAssert2.ThrowsCryptographicException(() => protector.Unprotect(protectedData));
Assert.Equal(Error.Common_KeyRevoked(keyId).Message, ex.Message);
}